Jupyter error "ModuleNotFoundError: No module named 'jupyterlab'"

After updating to Ubuntu LTS 22.04 the usual code "jupyter lab" is no more working.

Here what I get instead:

Traceback (most recent call last):   
    File "/home/lorenzo/.local/bin/jupyter-lab", line 5, in <module>
      from jupyterlab.labapp import main 
ModuleNotFoundError: No module named 'jupyterlab'

I tried to dig into related old questions but I didn't manage to solve the problem. Thanks!